Fair Value Measurements (Assets) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016
Assets Fair Value Disclosure [Abstract]
Derivative financial instruments	$ (1,667)	$ (1,252)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets Fair Value Disclosure [Abstract]
Derivative financial instruments	0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets Fair Value Disclosure [Abstract]
Derivative financial instruments	(1,667)	(1,252)
Significant Unobservable Inputs (Level 3) [Member]
Assets Fair Value Disclosure [Abstract]
Derivative financial instruments	0	0
Government Securities [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	9,378	9,663
Government Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	0	0
Government Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	9,378	9,663
Government Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	0	0
Corporate Bonds [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	2,820	2,405
Corporate Bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	0	0
Corporate Bonds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	2,820	2,405
Corporate Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	$ 0	$ 0